Scattering properties of weakly bound dimers of fermionic atoms

D. S. Petrov 1, 2, 3, C. Salomon 4, G. V. Shlyapnikov 2, 3, 5, 6

Physical Review A: Atomic, Molecular and Optical Physics 71 (2005) 012708

We consider weakly bound diatomic molecules (dimers) formed in a two-component atomic Fermi gas with a large positive scattering length for the interspecies interaction. We develop a theoretical approach for calculating atom-dimer and dimer-dimer elastic scattering and for analyzing the inelastic collisional relaxation of the molecules into deep bound states. This approach is based on the single-channel zero range approximation, and we find that it is applicable in the vicinity of a wide two-body Feshbach resonance. Our results draw prospects for various interesting manipulations of weakly bound dimers of fermionic atoms.

  • 1. ITAMP, Department of Physics,
    University of Harvard
  • 2. Kavli Institute for Theoretical Physics,
    University of California, Santa Barbara
  • 3. National Research Centre "Kurchatov Institute" (NRC KI),
    University of Moscow
  • 4. Laboratoire Kastler Brossel (LKB (Lhomond)),
    CNRS : UMR8552 – Université Paris VI - Pierre et Marie Curie – Ecole Normale Supérieure de Paris - ENS Paris
  • 5. Laboratoire de Physique Théorique et Modèles Statistiques (LPTMS),
    CNRS : UMR8626 – Université Paris XI - Paris Sud
  • 6. Van der Waals-Zeeman Institute,
    University of Amsterdam